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This valuable book aims to provide a connection between various chromatography techniques and different processes. Authors applied these techniques in supercritical technology, medical, environmental, physique and chemical processes. Most of them prepared mathematical support (such as correlation) for their original results obtained from the chromatography techniques. Since chromatography techniques (such as GC, HPLC & etc) are separating and analyzing methods, this chapters will help other researchers and young scientists to choose a suitable chromatography technique. Furthermore, this book illustrates the newest challenges in this area.

Gas chromatography. --- Gas-liquid chromatography --- GLC (Chromatographic analysis) --- Vapor-phase chromatography --- Chromatographic analysis --- Analytical chemistry

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Gas chromatography (GC) is one of the most important types of chromatography used in analytical chemistry for separating and analyzing chemical organic compounds. Today, gas chromatography is one of the most widespread investigation methods of instrumental analysis. This technique is used in the laboratories of chemical, petrochemical, and pharmaceutical industries, in research institutes, and also in clinical, environmental, and food and beverage analysis. This book is the outcome of contributions by experts in the field of gas chromatography and includes a short history of gas chromatography, an overview of derivatization methods and sample preparation techniques, a comprehensive study on pyrazole mass spectrometric fragmentation, and a GC/MS/MS method for the determination and quantification of pesticide residues in grape samples.

Gas chromatography. --- Gas-liquid chromatography --- GLC (Chromatographic analysis) --- Vapor-phase chromatography --- Chromatographic analysis --- Physical Sciences --- Engineering and Technology --- Chemistry --- Analytical Chemistry --- Instrumental Chemistry

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Progress in agricultural, biomedical and industrial applications' is a compilation of recent advances and developments in gas chromatography and its applications. The chapters cover various aspects of applications ranging from basic biological, biomedical applications to industrial applications. Book chapters analyze new developments in chromatographic columns, microextraction techniques, derivatisation techniques and pyrolysis techniques. The book also includes several aspects of basic chromatography techniques and is suitable for both young and advanced chromatographers. It includes some new developments in chromatography such as multidimensional chromatography, inverse chromatography and some discussions on two-dimensional chromatography. The topics covered include analysis of volatiles, toxicants, indoor air, petroleum hydrocarbons, organometallic compounds and natural products. The chapters were written by experts from various fields and clearly assisted by simple diagrams and tables. This book is highly recommended for chemists as well as non-chemists working in gas chromatography.

Gas chromatography. --- Analytical chemistry. --- Analysis, Chemical --- Analytic chemistry --- Chemical analysis --- Chemistry, Analytic --- Chemistry --- Gas-liquid chromatography --- GLC (Chromatographic analysis) --- Vapor-phase chromatography --- Chromatographic analysis --- Physical Sciences --- Engineering and Technology --- Analytical Chemistry --- Instrumental Chemistry

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Five years of Separations are celebrated by a collection of ten feature articles: one review and nine research articles on topics of current interest. Applications of Gas Chromatography for the Analysis of Tricyclic Antidepressants in Biological Matrices are presented focusing on novel extraction techniques and novel materials used for sample preparation due to the great demand for method development for the determination of TCAs in biofluids, especially for therapeutic drug monitoring. Original research articles include the following: 1. Insights into the Mechanism of Separation of Bisphosphonates by Zwitterionic Hydrophilic Interaction Liquid Chromatography: Application to the Quantitation of Risedronate in Pharmaceuticals. 2. A method based on micro-matrix solid-phase dispersion (μ-MSPD) followed by gas-chromatography tandem mass spectrometry (GC–MS/MS), developed to analyze UV filters in personal care products. 3. The performance of a vibratory shear-enhanced process (VSEP) combined with an appropriate membrane unit for the treatment of simulated or industrial tannery wastewaters. 4. A method for the analysis of thyroid hormones by liquid chromatography-mass spectrometry that was used for the dissolution testing of single- and dual-component thyroid hormone supplements via a two-stage biorelevant dissolution procedure. 5. A method involving the collection and determination of organic and inorganic gunshot residues on hands using online in-tube solid-phase microextraction (IT-SPME) coupled to miniaturized capillary liquid chromatography with diode array detection (CapLC-DAD) and scanning electron microscopy coupled to energy dispersion X-ray (SEM-EDX), respectively, for quantifying both residues. 6. The gas chromatographic retention behavior of 16 polycyclic aromatic hydrocarbons (PAHs) and alkylated PAHs on a new ionic liquid stationary phase, 1,12-di(tripropylphosphonium) dodecane bis(trifluoromethanesulfonyl)imide (SLB®-ILPAH) intended for the separation of PAH mixtures, which was compared with the elution pattern on more traditional stationary phases: a non-polar phenyl arylene (DB-5ms) and a semipolar 50% phenyl dimethyl siloxane (SLB PAHms) column. 7. The Multiple-Stage Precursor Ion Separation and High Resolution Mass Spectrometry toward Structural Characterization of 2,3-Diacyltrehalose Family from Mycobacterium tuberculosis 8. The use of micellar electrokinetic chromatography (MEKC) for studying the hydrophobic character of modified Monomethyl Auristatin E derivatives, as Novel Candidates for the Design of Antibody–Drug Conjugates, which are promising state-of-the-art biopharmaceutical drugs for selective drug-delivery applications and the treatment of diseases such as cancer. 9. The use of recycled diatomaceous earth as the extraction phase in solid phase microextraction (SPME) technique for the determination of polycyclic aromatic hydrocarbons (PAHs) in river water samples, with separation/detection performed by gas chromatography-mass spectrometry (GC-MS).

recycled diatomaceous earth --- solid phase microextraction --- polycyclic aromatic hydrocarbons --- gas chromatography-mass spectrometry --- antibody-drug conjugate --- biopharmaceutical --- cytotoxicity --- hydrophobicity --- micellar electrokinetic chromatography --- tandem mass spectrometry --- linear ion trap --- glycolipid --- diacyltrehalose --- Mycobacterium tuberculosis --- bisphosphonates --- risedronate --- zoledronate --- tiludronate --- ZIC-HILIC --- PDA --- quantitation --- tablets --- ionic liquid stationary phase --- gas chromatography --- chromatographic selectivity --- alkylated polycyclic aromatic hydrocarbons (alkylated PAHs) --- diphenylamine --- gunshot residues --- hands --- dry cotton swab --- in-tube solid-phase extraction --- capillary liquid chromatography --- SEM-EDX --- thyroid --- dissolution --- liquid chromatography-mass spectrometry --- membrane filtration-treatment --- membrane type-operation --- membrane fouling mechanism --- tannery industrial wastewater --- vibratory shear-enhanced process (VSEP) --- tricyclic antidepressants (TCAs) --- sample treatment --- biological fluids --- UV filters --- matrix solid-phase dispersion --- μ-MSPD --- miniaturized extraction technique --- GC–MS/MS --- cosmetic analysis --- personal care products --- fragrance allergens --- preservatives --- plasticizers --- synthetic musks

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Metabolomics is increasingly being used to explore the dynamic responses of living systems in biochemical research. The complexity of the metabolome is outstanding, requiring the use of complementary analytical platforms and methods for its quantitative or qualitative profiling. In alignment with the selected analytical approach and the study aim, sample collection and preparation are critical steps that must be carefully selected and optimized to generate high-quality metabolomic data. This book showcases some of the most recent developments in the field of sample preparation for metabolomics studies. Novel technologies presented include electromembrane extraction of polar metabolites from plasma samples and guidelines for the preparation of biospecimens for the analysis with high-resolution μ magic-angle spinning nuclear magnetic resonance (HR-μMAS NMR). In the following chapters, the spotlight is on sample preparation approaches that have been optimized for diverse bioanalytical applications, including the analysis of cell lines, bacteria, single spheroids, extracellular vesicles, human milk, plant natural products and forest trees.

metabolomics --- sample preparation --- hydrophilic interaction liquid chromatography --- ion mobility spectrometry --- high resolution mass spectrometry --- design of experiments --- AMOPLS --- metabonomics --- metabolic profiling --- NMR --- nuclear magnetic resonance spectroscopy --- cell line --- human cell line --- MiaPaCa-2 --- Panc-1 --- AsPC-1 --- extracellular vesicles --- exosomes --- microvesicles --- biomarkers --- diagnostics --- metabolic pathways --- plant metabolomics --- forestry --- trees --- mass spectrometry --- metabolite extraction --- GC-MS --- LC-MS --- metadata standardization --- databases --- multicellular tumor spheroids --- metallodrugs --- oxaliplatin --- KP1339 --- method development --- IT-139 --- 20% FCS --- harvesting --- extraction --- metabolites --- normalization --- electromembrane extraction --- cardiovascular disease --- multi-segment injection --- capillary electrophoresis–mass spectrometry --- liquid chromatography–mass spectrometry --- plant natural products --- drug discovery --- liquid chromatography --- gas chromatography --- human milk --- metabolome --- sampling --- liquid chromatography–mass spectrometry (LC-MS) --- nuclear magnetic resonance (NMR) --- gas chromatography–mass spectrometry (GC-MS) --- capillary electrophoresis—mass spectrometry (CE-MS) --- high-resolution magic angle spinning --- microscopic samples --- lipidomics --- LC-MS/MS --- human plasma